fix[Tinymce]: fixed bug when init multiple tinymces at the same time (#2152)
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@ -1,3 +1,11 @@
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let callbacks = []
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function loadedTinymce() {
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// to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2144
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// check is successfully downloaded script
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return window.tinymce
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}
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const dynamicLoadScript = (src, callback) => {
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const existingScript = document.getElementById(src)
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const cb = callback || function() {}
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@ -7,19 +15,28 @@ const dynamicLoadScript = (src, callback) => {
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script.src = src // src url for the third-party library being loaded.
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script.id = src
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document.body.appendChild(script)
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callbacks.push(cb)
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const onEnd = 'onload' in script ? stdOnEnd : ieOnEnd
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onEnd(script, cb)
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onEnd(script)
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}
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if (existingScript && cb) cb(null, existingScript)
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if (existingScript && cb) {
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if (loadedTinymce()) {
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cb(null, existingScript)
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} else {
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callbacks.push(cb)
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}
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}
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function stdOnEnd(script, cb) {
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function stdOnEnd(script) {
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script.onload = function() {
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// this.onload = null here is necessary
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// because even IE9 works not like others
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this.onerror = this.onload = null
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cb(null, script)
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for (const cb of callbacks) {
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cb(null, script)
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}
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callbacks = null
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}
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script.onerror = function() {
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this.onerror = this.onload = null
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@ -27,11 +44,14 @@ const dynamicLoadScript = (src, callback) => {
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}
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}
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function ieOnEnd(script, cb) {
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function ieOnEnd(script) {
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script.onreadystatechange = function() {
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if (this.readyState !== 'complete' && this.readyState !== 'loaded') return
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this.onreadystatechange = null
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cb(null, script) // there is no way to catch loading errors in IE8
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for (const cb of callbacks) {
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cb(null, script) // there is no way to catch loading errors in IE8
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}
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callbacks = null
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}
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}
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}
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